Are you using mods? Mods increase RAM requirements by a lot.Madodev :
Did the Ram change to more needed for version 1.4.4, then what was needed for version 1.3 ?
Downloaded, and have been playing ver. 1.3, with occasional "Godot has stopped running" closures .
Restart, and continue playing from where left off via save game on closure .
Tried to play the ver.1.4.4 , loaded, hit play session and an immediate closed down !
PS - Playing on Windows PC .
But yeah, it's perfectly possible that newer versions require more RAM as they contain more content.
There haven't been any engine/rendering related changes, so that can't be it.